英语词汇alertness怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	alertness
释义	alertness /əˈlɜːtnɪs/ n. (liveliness of mind)警觉；警惕；留神；注意 The drug improved mental alertness.这种药可以提高大脑的注意力。
随便看	-holic holiday Holiday, Billie holiday camp holiday clothes holiday cottage holiday entitlement holidayer holidayers holiday feeling holiday home holiday job holiday-maker holidaymaker holiday pay holiday plans holiday rep holiday resort holidays holiday snaps holiday spirit holiday traffic holiday village holier holier

英汉双解词典包含368430条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。